There are three power plays when the fielding team plays in a (One Day International) ODI cricket match. They are called PP1, PP2, & PP3.
PP1- First set of 10 overs only two fielders can remain outside the 30-yard circle.
PP2- It covers 11-40 of an innings. In PP2 only a maximum of four fielders arr allowed outside the 30-yard circle.
PP3- And the last 41-50 over cover by five fielders are allowed outside the 30-yard circle.
I hope this information is more than enough for understand “ODI powerplay rules”.